During Jefferson Starship's 1978 European tour, Slick's alcoholism became a problem for the band. The group had to cancel the first night in Germany because she was too intoxicated to perform, causing the audience to riot. Slick performed the next night with the band, but was so inebriated she could not sing properly. She also attacked the audience, mocking Germany for losing World War II, and groping both female audience members and bandmates. The next day, she left the group. That same year, Slick was dragged off a San Francisco game show for abusing the contestants. She was admitted to a detoxification facility at least twice, once during the 1970s at Duffy's in Napa Valley, and once in the 1990s with daughter China.